Cyclones are large areas of swirling air with clouds and precipitation being formed inside.
A glacier is a large body of ice that forms from snow, and is in constant, slow motion.
Water on Earth is in a continuous state of change. The water cycle includes processes such as evaporation, precipitation, melting and freezing.
Hotspots are areas of the Earth´s crust where magma often rises to the surface and causes volcanic activity.
The phosphorus cycle describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.
The diameter of our galaxy is about 100,000 light years; it contains more than 100 billion stars, one of which is our Sun.